source file of the GNU LilyPond music typesetter
- (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#include "dot-column.hh"
+#include <math.h> // ceil
+
+#include "axis-group-interface.hh"
#include "note-column.hh"
-#include "beam.hh"
-#include "note-head.hh"
#include "stem.hh"
-#include "rest.hh"
#include "debug.hh"
#include "paper-def.hh"
+#include "group-interface.hh"
+#include "staff-symbol-referencer.hh"
+#include "rest.hh"
+#include "note-head.hh"
bool
-Note_column::rest_b () const
+Note_column::rest_b (Score_element*me)
{
- return rest_l_arr_.size ();
+ return unsmob_element (me->get_elt_property ("rest"));
}
int
-Note_column::shift_compare (Note_column *const &p1, Note_column*const&p2)
+Note_column::shift_compare (Score_element *const &p1, Score_element *const&p2)
{
SCM s1 = p1->get_elt_property ("horizontal-shift");
SCM s2 = p2->get_elt_property ("horizontal-shift");
- int h1 = (s1 == SCM_UNDEFINED) ? 0 : gh_scm2int (s1);
- int h2 = (s2 == SCM_UNDEFINED) ? 0 : gh_scm2int (s2);
+ int h1 = (gh_number_p (s1))? gh_scm2int (s1) :0;
+ int h2 = (gh_number_p (s2)) ? gh_scm2int (s2):0;
return h1 - h2;
}
-Note_column::Note_column()
+void
+Note_column::set_interface (Score_element* me)
{
- set_axes (X_AXIS, Y_AXIS);
- stem_l_ = 0;
+ me->set_elt_property ("note-heads", SCM_EOL);
+ me->set_interface (ly_symbol2scm ("note-column-interface"));
+
+ Axis_group_interface::set_interface (me);
+ Axis_group_interface::set_axes (me, X_AXIS, Y_AXIS);
}
-void
-Note_column::sort()
+Item *
+Note_column::stem_l (Score_element*me)
{
- head_l_arr_.sort (Note_head::compare);
+ SCM s = me->get_elt_property ("stem");
+ return dynamic_cast<Item*>(unsmob_element (s));
}
Slice
-Note_column::head_positions_interval() const
+Note_column::head_positions_interval(Score_element *me)
{
Slice iv;
iv.set_empty ();
- for (int i=0; i <head_l_arr_.size ();i ++)
+
+ SCM h = me->get_elt_property ("note-heads");
+ for (; gh_pair_p (h); h = gh_cdr (h))
{
- int j = int (head_l_arr_[i]->position_f ());
+ Score_element *se = unsmob_element (gh_car (h));
+
+ int j = int (Staff_symbol_referencer::position_f (se));
iv.unite (Slice (j,j));
}
return iv;
}
Direction
-Note_column::dir () const
+Note_column::dir (Score_element* me)
{
- if (stem_l_)
- return stem_l_->get_direction ();
- else if (head_l_arr_.size ())
- return (Direction)sign (head_positions_interval().center ());
+ Score_element *stem = unsmob_element (me->get_elt_property ("stem"));
+ if (stem && Stem::has_interface (stem))
+ return Stem::get_direction (stem);
+ else if (gh_pair_p (me->get_elt_property ("note-heads")))
+ return (Direction)sign (head_positions_interval (me).center ());
programming_error ("Note column without heads and stem!");
return CENTER;
void
-Note_column::set_stem (Stem * stem_l)
-{
- stem_l_ = stem_l;
- add_dependency (stem_l);
- add_element (stem_l);
-}
-
-
-void
-Note_column::do_substitute_element_pointer (Score_element*o, Score_element*n)
+Note_column::set_stem (Score_element*me,Score_element * stem_l)
{
- if (stem_l_ == o)
- {
- stem_l_ = n ? dynamic_cast<Stem *> (n):0;
- }
- if (dynamic_cast<Note_head *> (o))
- {
- head_l_arr_.substitute (dynamic_cast<Note_head *> (o),
- (n)? dynamic_cast<Note_head *> (n) : 0);
- }
-
- if (dynamic_cast<Rest *> (o))
- {
- rest_l_arr_.substitute (dynamic_cast<Rest *> (o),
- (n)? dynamic_cast<Rest *> (n) : 0);
- }
+ me->set_elt_property ("stem", stem_l->self_scm ());
+ me->add_dependency (stem_l);
+ Axis_group_interface::add_element (me, stem_l);
}
void
-Note_column::add_head (Rhythmic_head *h)
+Note_column::add_head (Score_element*me,Score_element *h)
{
- if (Rest*r=dynamic_cast<Rest *> (h))
+ if (Rest::has_interface (h))
{
- rest_l_arr_.push (r);
+ me->set_elt_property ("rest", h->self_scm ());
}
- if (Note_head *nh=dynamic_cast<Note_head *> (h))
+ else if (Note_head::has_interface (h))
{
- head_l_arr_.push (nh);
+ Pointer_group_interface::add_element (me, "note-heads",h);
}
- add_element (h);
+ Axis_group_interface::add_element (me, h);
}
/**
translate the rest symbols vertically by amount DY_I.
*/
void
-Note_column::translate_rests (int dy_i)
+Note_column::translate_rests (Score_element*me,int dy_i)
{
- invalidate_cache (Y_AXIS);
- for (int i=0; i < rest_l_arr_.size(); i++)
- rest_l_arr_[i]->translate_axis (dy_i * rest_l_arr_[i]->staff_line_leading_f ()/2.0,
- Y_AXIS);
+ Score_element * r = unsmob_element (me->get_elt_property ("rest"));
+ if (r)
+ {
+ r->translate_axis (dy_i * Staff_symbol_referencer::staff_space (r)/2.0, Y_AXIS);
+ }
}
-void
-Note_column::do_print() const
-{
-#ifndef NPRINT
- DEBUG_OUT << "rests: " << rest_l_arr_.size() << ", ";
- DEBUG_OUT << "heads: " << head_l_arr_.size();
-#endif
-}
void
-Note_column::set_dotcol (Dot_column *d)
+Note_column::set_dotcol (Score_element*me,Score_element *d)
{
- add_element (d);
+ Axis_group_interface::add_element (me, d);
}
-/*
- [TODO]
- handle rest under beam (do_post: beams are calculated now)
- what about combination of collisions and rest under beam.
-
- Should lookup
-
- rest -> stem -> beam -> interpolate_y_position ()
-
-*/
-
-void
-Note_column::do_post_processing ()
-{
- if (!stem_l_ || !rest_b ())
- return;
-
- Beam * b = stem_l_->beam_l ();
- if (!b || !b->stem_count ())
- return;
-
- /* ugh. Should be done by beam. */
- Direction d = stem_l_->get_direction ();
- Real beamy = (stem_l_->hpos_f () - b->stem(0)->hpos_f ()) * b->slope_f_ + b->left_y_;
-
- Real staff_space = rest_l_arr_[0]->staff_line_leading_f ();
- Real rest_dim = extent (Y_AXIS)[d]*2.0 /staff_space ;
-
- Real minimum_dist
- = paper_l ()->get_var ("restcollision_minimum_beamdist") ;
- Real dist =
- minimum_dist + -d * (beamy - rest_dim) >? 0;
- int stafflines = rest_l_arr_[0]->lines_i ();
- // move discretely by half spaces.
- int discrete_dist = int (ceil (dist ));
- // move by whole spaces inside the staff.
- if (discrete_dist < stafflines+1)
- discrete_dist = int (ceil (discrete_dist / 2.0)* 2.0);
-
- translate_rests (-d * discrete_dist);
+Score_element*
+Note_column::first_head (Score_element*me)
+{
+ Score_element * st = stem_l (me);
+ return st? Stem::first_head (st): 0;
}
+bool
+Note_column::has_interface (Score_element*me)
+{
+ return me && me->has_interface (ly_symbol2scm ("note-column-interface"));
+}